During which period was the first stone pyramid built in saqqara

It was built in the 27th century BC during the Third Dynasty for the burial of Pharaoh Djoser by his vizier, Imhotep. The pyramid is the central feature of a vast mortuary complex in an enormous courtyard surrounded by ceremonial structures and decoration.

Explanation:

I think old kingdom or middle kingdom

answer; /// the correct answer is evidence of the olmec civilization has been found in southern american in a hot steamy forest, archaeologists have found earthen artifacts at several sites that were evidence of the olmec civilization. these   artifacts were mounds,courtyards and pyramids build of stones, also on top of the mounds were many monuments made of stone, some of these stone structures are very large, they weigh as much as 44